Adegoke, A. O., M. U. M. Bakura, I. Mustapha, and I. M. Sani. “Comparative Analysis of Received GSM Signal Strength Network in University of Maiduguri, Borno State, Nigeria”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT, Vol. 15, no. 4, Dec. 2019, pp. 1061-6, https://azojete.com.ng/index.php/azojete/article/view/164.